Improvement in non-freezinx  hydrants



HUGH MERRE.

improvement in Non-Freezing Hydrants.

?atentati June !3, SL

. HUGH MERRIE, OF CINCINNATI, OHIO.

!MPROVEMENT !N NON=FREEZING HVDRANTS.

To all whom it may coacem: I

Be it known that I, HUGH MERRIE, of Cincinnati, Hamilton County, State of Ohio, have invented a certain new and useful Improvement in Hydrants and I hereby declare the following to be a snfciently full, clear, and exact description thereof to enable one skilled in the art to which nyinvention appertains to make and use it, reference being had to the aecompanying drawing making part of this speeification.

Nature and Objects of Iwenton.

My invention consists of a hydrant whose stop-valve is located above the point of discharge, and in the interier of hermeticallysealed cases of non-conducting material, the supply-pipe being surrounded by the cases, and thus fully protected against frost, while at the same time no water is permitted to waste in the operation of the hydrant.

Description of the Accompmyz'qg Dmwtg.

The aocompanying drawing represents a vertical section of my improved hydrant.

General Description.

A is the stock, preferably of Wood. It may be surrounded by a casing of iron, B, for protection and ornament. The stand-pipo 0 is or casing, F, surrounds the pipe C, this casing being of such size as to leave an annular space between the pipe and casing, for the occupancy of common air, which, being closely confined, and circulation thereby prevented, is preserved always at the temperature of the water in the'pipc of the nnderground supply. A good non-conducting material, A `such as hydraulic cement, is filled i between the casing A and casing F, which hermetically seals the air in the chamber between the pipe (l and casing F, and prevents a conductionof heat from the interior of the hydrant to the exterior air in cold weather.

The pipe C, below the valve c, is always full of water, none being allowed to waste as in other hydrants.

In consequence of the provision of the aircasing F and shell of non-condncting material between the cases A and F, the pipe O is fully protected against frost, eren in the coldest weather.

An exterior shell, Gr, filled with non-conducting material, forms an extended protection for the discharge-pipe. i

Olat'ms.

set my hand.

HUGH MERRIE.

Witnesses:

J. L. WARTMANN, E. F. LAYMAN. 

